> My concern is that people who say, "when I break through the noise" usually keep persevering without deciding on and committing to a failure criteria for this idea.

Well, yes, I made this mistake too.

> There is an enormous gap between valid and invalid if you take the experimentation approach.

I see what you're saying, and I buy this. But I'd say we're having a minor dictionary problem here, which is my fault. Experimentation is by definition execution, and my whole point was about execution. I think of the "idea" as a pure concept without any execution. I am totally with you on there almost always a way to test a business idea with a small amount of execution. That doesn't contradict, in my mind, that facade apps using Invision are simply not the right kind of execution to do experiments with a class of experience based value propositions.